R2.060219
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www.swegon.com
6.1 Service reminder
The service reminder is activated with preset time
intervals and the symbol is displayed on the control
panel’s screen and cooker hood indication LEDs. As a
factory setting, the service reminder is not in operation.
It can be activated from
Main menu/Diagnostics /
Service reminder
menu. The recommended service
interval for the ventilation unit is six months.
When servicing has been performed, the service re-
minder is reset from “Alarm” in the main menu. Service
reminder can always be reset under the main menu item
“Diagnostics / Service reminder”.
Service reminder
Service reminder
Service interval
Next service
Reset counter
6 m
6,0 m
6.2 To open the ventilation unit
Always isolate the power supply by pulling out the plug
from the wall socket before you begin any service work.
Wait a few minutes before you open the inspection
door on the ventilation unit, so that the fan will have
time to stop and the air heaters can cool down.
The lock bolts of the inspection doors are located in the
upper and lower edge of the door under the cover plates.
The cover plates can be removed by pressing them in and
sliding to one side as shown in the image below.
Open the inspection door by turning the two lock bolts
with a screw driver for slotted screw heads. The door
can then be carefully lifted off when the lock bolts have
been opened.
Turn the service switch to the 0-position prior to
commencing servicing.
6.3 Filters
The filters should be replaced at least every six months.
The filters may need to be replaced more often in homes
where there is considerable dust or if there are many
impurities in the outdoor air.
In a new home, there is still moisture from the construction
period, and the filters can become soiled more quickly
than usual. The first filter change should therefore be
made more often.
6. Service
The ventilation unit must not be operated without
filters. Use only filters recommended by Swegon.
This is important, as filters with exactly the same
appearance and size can have very different pressure
losses and filter capacity. If an incorrect filter is used, the
ventilation unit may not work as designed and Swegon
can’t be responsible for possible mailfunction. Check
correct filters from the list of components.
How to change filters,
instruction video:
www.swegonhomesolutions.com
Toolbox / How to change a filter
6.4 Heat exchanger
Check the condition of the heat exchanger whenever
you service the unit.
You must ensure that the heat exchanger has not frozen
to the air handling unit’s frame during cold spells. When
necessary the ventilation unit’s inspection door should
be kept open for a time before the heat exchanger is
removed from the unit, so that the temperatures have
time to equalize and to prevent damage to the seals.
Remove the screws of the heat exchanger’s guard plate
and pull the heat exchanger out to inspect it. If you
want to withdraw heat exchanger completely out of the
unit, you must also disconnect the quick-fit connector.
The contact is located under the extract air filter. When
you mount the heat exchanger back in the unit, be
sure to reconnect the connector and arrange the cable
where it won’t become worn by moving parts in the
rotary heat exchanger.
There is an opening in the front plate of the heat
exchanger through which you can see the drive belt.
Carefully rotate the heat exchanger rotor one revolution
to inspect the condition of the drive belt. Do not
damage the heat exchanger fins.
Check the condition of the brushes along the rotor
periphery. Replace the brushes if they are worn.
Make sure that the passages through the heat
exchanger rotor are not clogged and clean them e.g.
with running warm water if required. Never use cleaning
agents. Inside the heat exchanger enclosure there is an
electric motor that must not be exposed to dampness.
The passages of the heat exchanger should be dry
before you reinstall the heat exchanger in the unit.
